Pneumatic clock



(No Model.) 2 Sheets-Sheet 1.

R. O. WITTMANN. x

PNEUMATIG CLOCK.

N0. 359,830; Patented Mar. 22, 1887.

1.1;; i 0 if 4 JV 1 I h "d 0:? 1 i 1 1 TT' 2 Q INVENTOR:

ATTORNEYS.

N, PETERS. Fholo-lj hngrnphar. Wathingi m D. C.

2 Sheets-Sheet 2.

(NoModeL) R. G. WITTMANN.

PNEUMATIC CLOCK. N0. 359,830. Patented Mar. Z2, 1887 I I 7 F? .2, I2

x I Y INVENTOR BY JIM 7 ATTORNEYS.

WITNESSES N. PETERi Phoiolillwmpiwr, Walillnglon. D. C,

35 same shaft with a cog-wheel, D.

UNITED STATES PATENT OFFICE.

RUDOLF O. WVITTMANN, OF EAST NE\V YORK, ASSIGNOR TO HIMSELF AND ALWVINE F. BERNSEE, OF BROOKLYN, NEV YORK.

PNEUMATIC CLOCK.

SPECIFICATION forming part of Letters Patent No. 359,830, dated Ii/Iarch 22, 1887.

Application filed March 25, 1885. Renewed December I886. Serial Noflfihll ll. (No model.)

To aZZ whom, it may concern.-

Be it known that I, RUDO'LF O. \VITTMANN, of East New York, in the county of Kings and State of New York, have invented a new and 5 Improved Pneumatic Clock, of which the following is a full, clear, and exact description.

The object of my invention is to provide a new and improved pneumatic clock, by means of which a number of hands on different dials ie can be operated from one single clock, which improved pneumatic clock is very simple in construction and is wound automatically.

Reference is to be had to the accompanying drawings, forming part of this specification, in

r 5 which similar letters of referenceindicate corresponding parts in all the figures.

Figure 1 is a side view of my improved pneumatic clock. Fig. 2 is a longitudinal view -of the same. Fig. 3 is an enlarged detail view of the escapement and device for releasing the main mechanism. Fig. 4 is a detail sectional elevation of the mechanism for releasing the lever that moves the cocks. Fig. 5

is a detail view, hereinafter referred to, on an enlarged scale, and taken in the direction indicated by arrow,-Fig. 3.

A weight, A, is suspended from a hanger,

A, hung on a grooved pulley, A, over which a chain or cable, A", passes, which has one end 0 secured at a to the platform I), and has the other end wound on a drum, B, which is on the same shaft with a cogwvheel, B, engaging with a pinion, O, on the same shaft, with a cogwheel, 0, engaging with a pinion, D, on the With the cog-wheel D two cog-wheels E engage, which are mounted on the same shafts with the wheels vE, one of which wheels has the diametricallyopposite pins E which project from one and the same side of the said wheel; An anchor,

G, engages with the escapementwheel G,

mounted on the same shaft with the pinion G engaging with wheel H, having six pins, H". Alever, I, carrying an adjustable weight, 1, is provided at its end with a stop, J. An inclined plane or bevel, K, is formed on the under side of the lever I, and between the upper end ofthe said bevel and the stop or lug J a recess or slot, K, is formed in the side of the lever. A lever, K provided in its upper end with a hook, K, is pivoted on the lever Incar the swinging end.

To each wheel E a rod, L, is pivoted, on the lower end of which a cup, L, is secured,which rests on a rubber ball, M, formed on the upper end of an air conducting tube, M, on the other end of which tube M a rubber cap or cup, N, is held, in the top of which a fixed head, N, is secured, which is connected by a connectingrod, N", with a pivoted lever, N, having a pawl, N, which operates a wheel, N which is the usual driving-wheel of the clock. I have shown only one flexible cup, N, on the end of each pipe M; but it is evident that the pipe M can be provided with a number of branches, and one of the said cups arranged at the end of each branch.

On the end of the drum B a ratchetwheel, O, is formed, which engages with a vertical rack, O, on the lower end of which a piston, O", is formed, which works in a cylinder, 0, connected with the water-pipes P and P. The pipes I? and P are provided with cocks Q Q, provided with arms Q and Q", connected by a rod, Q One of the cooks is provided with an arm, t from which a rod, It, projects upward, and has its upper end connected with a pivoted lever, S, carrying an adjustable weight, S. A stop, R, is held adjustably on the rod It. On the platform I) a latch, T, is pivoted, which is provided with a triangular projection, T, adapted to engage with another projection, T, on the lever S, the latch T being pressed toward the projection T by a spring,

T secured on the platform. In place of connecting the valves Q and Q by the arms Q and Q" and the bar Q they may be connected by bevel-geari ng, or in any other suitable manner.

The lever l is weighted, and the weight tends to pull it down. The hook K of lever K rests on one of the pins H of the wheel H, and the weighted lever I, to which the hook is secured, causes said wheel H to revolve in the inverse direction of the arrow (0 and operate the pinion G" and the escapement-wheel G. As the wheel H revolves, the lever I is lowered until the stop J becomes disengaged from the pin E and at the instant that this takes place the wheel E is revolved suddenly, and the opposite pin, E, strikes the beveled portion of the lever at about the point indicated in Fig. 5 by a star, and raises the lever I, which forces the lever K upward, to cause the hook K to engage another pin, H and the said pin IE will rest against the stop J until the weighted lever I again causes the disengagement of the hook K and a pin, H Both rods or bars L are operated in the same manner, and the said rods or bars are operated alternately, the power for operating the said rods or bars being derived from the weight A. The wheel B is provided with a pin, B which, when it is at its lowest point, strikes the upper end of the latch T, thereby disengaging the projection T on the latch from the projection T on the lever S, thereby permitting the weight S on the lever S to swing the said lever and the rod R downward, which rod, acting on the cocks Q and Q, opens the former and closes the latter, thus permitting the water to pass up through the inlet-pipe P into the cylinder, thereby raising the piston O and therod O, the rack of which engages with the cog-wheel O and winds the drum B, whereby the chain or rope A is wound on the drum and the weight Ais raised. The weight A lies very close to the rod 1%, so that its upper edge can strike the stop R, for a purpose to be described.

WVhen the weight A has been raised sufficientl'y to strike the stop R on the rod It, the said stop, rod, andlcver S are raised, whereby the valve Q in the inlet-pipe P is closed, and the valve Q in the outlet-pipe I? is opened, and at the same time the projections T and T on the latch T, and the lever S, respectively, are engaged, and the lever S is locked in the raised position. The water flows out of the cylinder 0, and the piston and the piston-rod O descend. The cog-wheel 0 must be provided with a ratchet device, so that it revolves the drum only when the pistonrod O downward.

the following reason: It may happen that when the water is turned on there is none in the pipes, and consequently the weight A could not be raised, and would descend to such an extent that when the water is turned on it could not be raised sufficiently to strike the projection It. The projection D is not absoing the pin H the hook-lever K", the lever I,

the wheel E, the pitman-rod L, connected with the wheel E, the tube M, the bulb M on the upper end of the same, and a clock-work mechanism for revolving the wheel E, substantially as herein shown and described.

2. In a pneumatic clock, the combination, with a train of gearing operated by weights, of two wheels revolved at intervals by said gearing, rods or bars connected with the said wheels, tubes provided with compressible bulbs, which can be compressed by the rods connected with the above-mentioned wheels, compressible balls at the other ends of the tubes carrying the bulbs, and mechanism connected with the compressible balls for the purpose of revolving the wheels, substantially as herein shown and described.

3.,In a pneumatic clock, the combination, with a train of gearing, of the wheel E, connected with the same, and having pins E the wheel H, having pins H", the lever I, having the bevel K, the recess K, and the stop J, the hook-lever K pivoted on the lever I, the bar L, connectedwith the wheel E, the tube M, and the compressible ball M, substantially as herein shown and described.

4. In a clock, the combination, with a drum on which the weightrope is wound, of a cogwheel connected with the drum, a rack engaging with the cog-wheel, a piston formed on the lower end of the rack, a cylinder in which the piston works, a water-inlet and awater-outlet pipe in the cylinder, cocks connected with the said pipes,a rod connected with the said cocks,

. a lever connected with the rod, and alatch for locking the lever in place, substantially as herein shown and described. v 5. In a clock, the combination, with the drum on which the weight-rope is wound, of a cog-wheel connected with the drum, the piston-rod 0, having a rack engaging with the cog-wheel, the piston O" on the lower end of therod, the cylinder 0', in which the piston works, the pipes P 1?, having cocks Q (1),, connected with each other, the rod It, having the stop It, the lever S, the latch T, and the wheel B, having a pin, 13", substantially as herein shown and described.

' EUDOLF O. \VITTMANN. XVitnesses:

OSCAR F. GUNZ, O. SEDGWIOK. 

